How do I unlock my Aircard 754S Elevate AT&T mobile hotspot?
I tried to use my ATT Elevate Hotspot that I bought on Amazon.
The seller said it was unlocked. It works with AT&T mobile broadband data mini sim card, but when I put in a T-Mobile mobile broadband data mini sim card, I get this error:
SIM mep-locked (link)
I googled the error and according to this site (link), the problem is that the device isn't unlocked.
So apparently the ATT Elevate Hotspot is locked. In order to unlock it, I look at the information on the back of the device (link) and copy the IMEI number into AT&T's unlock website, https://www.att.com/deviceunlock/#/.
Unfortunately, when I try to do that, I get this error (link😞
Error: We found no record of the IMEI number you entered.
And when I try to do it again, I get this error:
Error: We’re sorry, but we’re having technical difficulties with our network at the moment. Please try again later. If this problem persists, try clearing the cache and cookies from your device. Questions? Call us at 800.331.0500, or dial 611 from your AT&T wireless phone. (errorCode.ULS3001)
How do I unlock my Aircard 754S Elevate-38BE AT&T mobile hotspot?
ATT Case #: [edited for privacy-please do not post personal or unique information such as but not limited to full names, employee ID numbers, email addresses, phone numbers, account numbers, etc.]